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GROUND FAULT IS MINUS
trouble

Siemens MXL

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What This Code Means

The system has detected a negative ground fault on the field wiring.

Common Causes

  • 1Pinched wire to ground
  • 2Moisture in junction box
  • 3Damaged cable insulation

Resolution Steps

Locate the loop and the specific device responsible for the leakage to ground and repair the wiring.

Manual References(1)

Field Notes

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Related Codes

GROUND FAULT IS PLUSThe system has detected a positive ground fault on the field wiring.AC Fail or BrownoutPrimary AC power is missing or below the brownout level; the System is running on battery backup.GROUND FAULT IS OKThe system ground fault test has passed and no ground faults are currently detected.[custom message] [device type] IN SUPA condition indicating that a monitored device or system has changed to an off-normal state, which takes priority over security and trouble conditions.Tamper SwitchThis is a security-type message for the tamper switch on the SMB-2 board when the system is selected for UL 1076 operation.

Related Questions

What modules are available to expand the MXL beyond its base configuration, and what is the maximum supported cabinet and loop count?What are the battery requirements and backup power calculations for the MXL?What is the purpose of the BCM-12A-C battery charger module on the MXL, and how many batteries does it support?
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